1-Naphthol, 3-methyl-

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  • Identifiers

    CAS number
    13615-40-2

    Molecular formula
    C11H10O

    SMILES
    CC1=CC2=CC=CC=C2C(=C1)O

    Safety labels

  • Odor profile

    Fragrance
    Phenolic 73.08%
    Woody 54.96%
    Medicinal 45.72%
    Animal 43.62%
    Leathery 41.65%
    Spicy 38.08%
    Dry 35.98%
    Smoky 32.88%
    Sweet 32.52%
    Fruity 32.35%

     

    Flavor
    Phenolic 56.27%
    Medicinal 44.2%
    Bitter 40.17%
    Medical 30.69%
    Fecal 30.31%
    Leather 29.58%
    Smoke 29.55%
    Phenol 29.09%
    Plastic 29.02%
    Animal 27.49%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    3.2

    pKa est.
    9.23 (weak base)

    Molecular weight
    158.2 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    294°C

    Flash point

    • 142.15 ˚C est.

  • Synonyms

    • 3-Methyl-1-naphthol
    • 3-Methyl-alpha-naphthol
    • 3-Methyl-1-naphthalenol
    • 1-NAPHTHOL, 3-METHYL-
    • BRN 1861348
    • DTXSID90159697
    • 4-06-00-04339 (Beilstein Handbook Reference)
    • RefChem:232365
    • DTXCID7082188
    • 3-methylnaphthalen-1-ol
    • 13615-40-2
    • 3-methyl-1-hydroxynaphthalene
    • 1-Naphthalenol, 3-methyl-
    • 3-methyl-naphthalen-1-ol
    • 3-methyl-l-naphthol
    • hydroxy-3-methyl naphthalene
    • SCHEMBL158141
    • SCHEMBL1327057
    • SCHEMBL1402395
    • SCHEMBL9652405
    • SCHEMBL11574890
    • SCHEMBL29670775
    • AKOS006278206
    • DB-241100
    • CS-0148208
    • 13615-40-2

  • Applications

    1-Naphthol, 3-methyl- (CAS 13615-40-2) is primarily used as an intermediate in the synthesis of azo dyes and pigments, providing the color-building blocks for textiles, printing inks, and coatings. It also serves as an intermediate in the preparation of specialty organic chemicals and naphthol-derived colorants to tailor hue and fastness properties. In the plastics and coatings industries, it acts as a colorant precursor to impart coloration to polymers and finished surfaces. Additionally, it may be used in synthetic routes to develop functional derivatives for dye chemistry research and development, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1394.0
    methanol 865.09
    isopropanol 938.73
    water 0.84
    ethyl acetate 1067.43
    n-propanol 1089.17
    acetone 2201.72
    n-butanol 1052.55
    acetonitrile 1872.3
    DMF 2441.05
    toluene 592.86
    isobutanol 644.06
    1,4-dioxane 3176.01
    methyl acetate 1002.02
    THF 3954.21
    2-butanone 1354.72
    n-pentanol 603.75
    sec-butanol 598.58
    n-hexane 287.04
    ethylene glycol 115.88
    NMP 840.02
    cyclohexane 315.73
    DMSO 1964.7
    n-butyl acetate 1190.12
    n-octanol 446.78
    chloroform 1838.2
    n-propyl acetate 776.69
    acetic acid 479.72
    dichloromethane 2258.9
    cyclohexanone 1617.37
    propylene glycol 115.73
    isopropyl acetate 520.49
    DMAc 584.85
    2-ethoxyethanol 574.72
    isopentanol 575.03
    n-heptane 360.29
    ethyl formate 1000.28
    1,2-dichloroethane 1733.6
    n-hexanol 1072.5
    2-methoxyethanol 1034.63
    isobutyl acetate 420.34
    tetrachloromethane 279.68
    n-pentyl acetate 482.43
    transcutol 893.48
    n-heptanol 457.13
    ethylbenzene 335.03
    MIBK 580.63
    2-propoxyethanol 1164.82
    tert-butanol 742.52
    MTBE 685.03
    2-butoxyethanol 515.95
    propionic acid 462.26
    o-xylene 257.76
    formic acid 93.77
    diethyl ether 1739.26
    m-xylene 371.52
    p-xylene 336.15
    chlorobenzene 535.98
    dimethyl carbonate 372.81
    n-octane 148.4
    formamide 318.73
    cyclopentanone 2134.42
    2-pentanone 1368.22
    anisole 531.83
    cyclopentyl methyl ether 1428.34
    gamma-butyrolactone 1967.45
    1-methoxy-2-propanol 798.12
    pyridine 1401.51
    3-pentanone 772.16
    furfural 861.8
    n-dodecane 90.22
    diethylene glycol 480.43
    diisopropyl ether 332.89
    tert-amyl alcohol 449.92
    acetylacetone 835.17
    n-hexadecane 103.24
    acetophenone 357.46
    methyl propionate 811.27
    isopentyl acetate 667.41
    trichloroethylene 1774.98
    n-nonanol 362.75
    cyclohexanol 639.48
    benzyl alcohol 299.88
    2-ethylhexanol 513.73
    isooctanol 312.02
    dipropyl ether 1170.15
    1,2-dichlorobenzene 342.9
    ethyl lactate 224.37
    propylene carbonate 817.54
    n-methylformamide 1293.72
    2-pentanol 604.77
    n-pentane 267.76
    1-propoxy-2-propanol 780.93
    1-methoxy-2-propyl acetate 556.31
    2-(2-methoxypropoxy) propanol 286.63
    mesitylene 214.82
    ε-caprolactone 1064.76
    p-cymene 214.95
    epichlorohydrin 2191.46
    1,1,1-trichloroethane 927.39
    2-aminoethanol 259.59
    morpholine-4-carbaldehyde 1057.91
    sulfolane 1358.91
    2,2,4-trimethylpentane 58.04
    2-methyltetrahydrofuran 2068.02
    n-hexyl acetate 632.56
    isooctane 71.65
    2-(2-butoxyethoxy)ethanol 479.42
    sec-butyl acetate 356.68
    tert-butyl acetate 448.09
    decalin 114.18
    glycerin 132.41
    diglyme 1006.13
    acrylic acid 308.37
    isopropyl myristate 265.86
    n-butyric acid 758.06
    acetyl acetate 407.89
    di(2-ethylhexyl) phthalate 132.95
    ethyl propionate 588.87
    nitromethane 1364.64
    1,2-diethoxyethane 870.61
    benzonitrile 481.11
    trioctyl phosphate 147.09
    1-bromopropane 1278.34
    gamma-valerolactone 1756.04
    n-decanol 281.84
    triethyl phosphate 175.6
    4-methyl-2-pentanol 271.73
    propionitrile 1250.98
    vinylene carbonate 696.87
    1,1,2-trichlorotrifluoroethane 445.88
    DMS 326.88
    cumene 211.23
    2-octanol 325.67
    2-hexanone 849.31
    octyl acetate 319.53
    limonene 332.52
    1,2-dimethoxyethane 1622.1
    ethyl orthosilicate 174.28
    tributyl phosphate 159.94
    diacetone alcohol 451.26
    N,N-dimethylaniline 306.89
    acrylonitrile 1265.35
    aniline 414.91
    1,3-propanediol 508.88
    bromobenzene 560.0
    dibromomethane 1773.06
    1,1,2,2-tetrachloroethane 1118.56
    2-methyl-cyclohexyl acetate 307.57
    tetrabutyl urea 233.48
    diisobutyl methanol 284.04
    2-phenylethanol 393.15
    styrene 372.46
    dioctyl adipate 250.5
    dimethyl sulfate 373.68
    ethyl butyrate 699.21
    methyl lactate 225.87
    butyl lactate 242.89
    diethyl carbonate 354.55
    propanediol butyl ether 321.03
    triethyl orthoformate 331.02
    p-tert-butyltoluene 197.15
    methyl 4-tert-butylbenzoate 294.01
    morpholine 2717.6
    tert-butylamine 499.25
    n-dodecanol 223.07
    dimethoxymethane 1741.61
    ethylene carbonate 708.02
    cyrene 232.82
    2-ethoxyethyl acetate 462.02
    2-ethylhexyl acetate 507.27
    1,2,4-trichlorobenzene 324.57
    4-methylpyridine 1105.81
    dibutyl ether 699.09
    2,6-dimethyl-4-heptanol 284.04
    DEF 988.11
    dimethyl isosorbide 497.25
    tetrachloroethylene 710.36
    eugenol 289.05
    triacetin 296.08
    span 80 261.58
    1,4-butanediol 189.53
    1,1-dichloroethane 1495.95
    2-methyl-1-pentanol 361.74
    methyl formate 1068.04
    2-methyl-1-butanol 497.97
    n-decane 161.89
    butyronitrile 1476.07
    3,7-dimethyl-1-octanol 300.11
    1-chlorooctane 429.33
    1-chlorotetradecane 159.2
    n-nonane 186.85
    undecane 118.98
    tert-butylcyclohexane 106.96
    cyclooctane 129.14
    cyclopentanol 743.22
    tetrahydropyran 2814.42
    tert-amyl methyl ether 430.81
    2,5,8-trioxanonane 538.29
    1-hexene 767.09
    2-isopropoxyethanol 394.36
    2,2,2-trifluoroethanol 147.12
    methyl butyrate 819.76

    Scent© AI

1 4

IFRA standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
 No restriction
Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
 No restriction
Category 3
Products applied to the face/body using fingertips
 No restriction Category 8
Products with significant anogenital exposure
 No restriction
Category 4
Products related to fine fragrance
 No restriction Category 9
Products with body and hand exposure, primarily rinse off
 No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 No restriction Category 10A
Household care products with mostly hand contact
 No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 No restriction
Category 5D
Baby Creams, baby Oils and baby talc
 No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 No restriction
Category 6
Products with oral and lip exposure
 No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction